Journal of Zhejiang University SCIENCE A

, Volume 13, Issue 7, pp 538–545 | Cite as

Strain transfer of surface-bonded fiber Bragg grating sensors for airship envelope structural health monitoring

  • Hai-tao Zhao
  • Quan-bao Wang
  • Ye Qiu
  • Ji-an Chen
  • Yue-ying Wang
  • Zhen-min Fan
Article

Abstract

This paper deals with an improved bonding approach of surface-bonded fiber Bragg grating (FBG) sensors for airship envelope structural health monitoring (SHM) under the strain transfer theory. A theoretical formula is derived from the proposed model to predict the strain transfer relationship between the airship envelope and fiber core. Then theoretical predictions are validated by numerical analysis using the finite element method (FEM). Finally, on the basis of the theoretical approach and numerical validation, parameters that influence the strain transfer rate from the airship envelope to fiber core and the ratio of effective sensing length are analyzed, and some meaningful conclusions are provided.

Key words

Airship envelope Fiber Bragg grating (FBG) Surface-bonded Strain transfer Structural health monitoring (SHM) 

CLC number

V27 

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Copyright information

© Zhejiang University and Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Hai-tao Zhao
    • 1
  • Quan-bao Wang
    • 1
  • Ye Qiu
    • 1
  • Ji-an Chen
    • 1
  • Yue-ying Wang
    • 1
  • Zhen-min Fan
    • 1
  1. 1.School of Aeronautics and AstronauticsShanghai Jiao Tong UniversityShanghaiChina

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